code: def test_dynamic_subpackage_missing():
      # Test nonexistent subpackage dynamic attribute access and imports raise expected
      # errors.
  
      # Test that nonexistent subpackage attribute access raises an AttributeError.
      with pytest.raises(AttributeError):
          ray.foo  # noqa:F401
  
      # Test that nonexistent subpackage import raises an ImportError.
      with pytest.raises(ImportError):
          from ray.foo import bar
  
file_path: ray/python/ray/tests/test_top_level_api.py
imports: from inspect import getmembers, isfunction, ismodule
  import sys
  import pytest
  import ray
label_desc: Use image node_id 4 for calling a global function with example usage: test_dynamic_subpackage_missing() without return types